engineering

Zakimi Castle

Zakimi Castle is a engineering topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Zakimi Castle rather than just read about it. In short: Zakimi Castle (座喜味城, Zakimi jō; Okinawan: Zachimi Gushiku) is a Ryūkyūan gusuku fortification located in the village of Yomitan, Okinawa Prefecture, Japan. It has been protected by the central government as a National Historic Site since 1972.

Key takeaways

Zakimi Castle belongs to engineering; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Zakimi Castle to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Zakimi Castle from memory before moving on to harder problems.

Reference excerpt

Zakimi Castle (座喜味城, Zakimi jō; Okinawan: Zachimi Gushiku) is a Ryūkyūan gusuku fortification located in the village of Yomitan, Okinawa Prefecture, Japan. It has been protected by the central government as a National Historic Site since 1972. It is in ruins, but the walls and foundations have been restored. In 2000, Zakimi Castle was designated as a UNESCO World Heritage Site, as a part of the Gusuku Sites and Related Properties of the Kingdom of Ryukyu.

History Zakimi Castle, is located on a high ground overlooking a wide area of the Nakagami region in the northern portion of central Okinawa Island. The sea and surrounding islands (including the Kerama Islands are visible, indicating its strategic military importance. The fortress has two inner courts, each with an arched gate. The gates use keystone construction, which is considered an older form of arch gate. The protruding sections of the castle walls reaching approximately 13 meters at their highest point and 3 meters at their lowest are made from Ryūkyū limestone, employing both interlocking and coursed masonry techniques, resulting in a massive structure with many curves, which is also characteristic of Ryūkyūan castles. Since no roof tiles have been excavated, it is believed that the buildings that once stood there had thatched roofs. The outer perimeter of the castle is 365 meters, and the area within the fortifications is 7,385 square meters. The castle was built between 1416 and 1422 by the renowned Ryūkyūan general Gosamaru, a project which involved workers from as far away as the Amami Islands, and was partly constructed with materials taken from nearby Yamada Castle. It remained his stronghold until he was transferred to Nakagusuku Castle in 1430. Since trade artifacts dating to the mid-15th century onwards have been unearthed in archaeological excavations, it is presumed that the castle was used for some time even after Gosamaru's transfer, although much remains uncertain about its history. In August 1944, the Imperial Japanese Army constructed an anti-aircraft gun position in the first enclosure of Zakimi Castle to protect Yomitan Auxiliary Airfield. In October of that year, the castle was severely damaged by aerial bombardment, and after the 1945 Battle of Okinawa it came under US military occupation. After the end of the war, Zakimi Castle Ruins became part of the Bolo firing range. In 1958, although it was designated an Important Cultural Property by the Government of the Ryukyu Islands, it was further damaged by the construction of a Nike anti-aircraft missile battery and radar site. Archaeological excavations and repairs to the stone walls were permitted in 1973, and with the decommissioning of the radar site in 1974, the castle was returned to the control of Japan. In September 1991, the theater company "Daichi" staged "Shakespeare in Zakimi: A Midsummer Night's Dream" for two days. It was the first outdoor play at Zakimi Castle, based on Shakespeare's "A Midsummer Night's Dream," with Gosamaru as the protagonist. The castle was listed as one of the Continued 100 Fine Castles of Japan by the Japanese Castle Foundation in 2017.

See also List of Historic Sites of Japan (Okinawa)

References Motoo, Hinago (1986). Japanese Castles. Tokyo: Kodansha. p. 200 pages. ISBN 0-87011-766-1.

External links Media related to Zakimi Castle at Wikimedia Commons

Yomitan tourist Information

Illustrations

Worked examples

Example 1 — a first encounter with Zakimi Castle

Start with the simplest possible case. Write down what Zakimi Castle claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In engineering, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Zakimi Castle before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Zakimi Castle ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Zakimi Castle

In research: Zakimi Castle appears in engineering research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Zakimi Castle in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Zakimi Castle is common in secondary-school and first-year university syllabi. It links to neighbouring topics Buildings and structures completed in 1422, Castles in Okinawa Prefecture, Historic Sites of Japan, so understanding it makes those chapters shorter.
In everyday life: Look for Zakimi Castle outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Zakimi Castle in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Zakimi Castle means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Zakimi Castle out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Zakimi Castle in simple terms?

Why does Zakimi Castle matter?

Because it connects several engineering ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Zakimi Castle?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Zakimi Castle.